JAL-2136 merged and resolved conflicts with 80edaa84d6d9beac9f0d2c71b50b7b56fd393427
[jalview.git] / src / jalview / gui / StructureChooser.java
index 8dbe0c2..bff6d6f 100644 (file)
@@ -32,10 +32,14 @@ import jalview.fts.api.FTSRestClientI;
 import jalview.fts.core.FTSRestRequest;
 import jalview.fts.core.FTSRestResponse;
 import jalview.fts.service.pdb.PDBFTSRestClient;
+import jalview.io.DataSourceType;
 import jalview.jbgui.GStructureChooser;
+import jalview.structure.StructureMapping;
 import jalview.structure.StructureSelectionManager;
 import jalview.util.MessageManager;
 import jalview.ws.DBRefFetcher;
+import jalview.ws.phyre2.Phyre2Client;
+import jalview.ws.phyre2.Phyre2SummaryPojo;
 import jalview.ws.sifts.SiftsSettings;
 
 import java.awt.event.ItemEvent;
@@ -45,12 +49,12 @@ import java.util.HashSet;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Objects;
+import java.util.Set;
 import java.util.Vector;
 
 import javax.swing.JCheckBox;
 import javax.swing.JComboBox;
 import javax.swing.JLabel;
-import javax.swing.JOptionPane;
 import javax.swing.table.AbstractTableModel;
 
 /**
@@ -63,7 +67,7 @@ import javax.swing.table.AbstractTableModel;
 public class StructureChooser extends GStructureChooser implements
         IProgressIndicator
 {
-  private boolean structuresDiscovered = false;
+  private static int MAX_QLENGTH = 7820;
 
   private SequenceI selectedSequence;
 
@@ -77,10 +81,12 @@ public class StructureChooser extends GStructureChooser implements
 
   private FTSRestClientI pdbRestCleint;
 
-  private String selectedPdbFileName;
+  private String selectedStructureFileName;
 
   private boolean isValidPBDEntry;
 
+  private boolean cachedPDBExists;
+
   public StructureChooser(SequenceI[] selectedSeqs, SequenceI selectedSeq,
           AlignmentPanel ap)
   {
@@ -101,6 +107,8 @@ public class StructureChooser extends GStructureChooser implements
       progressBar = new ProgressBar(this.statusPanel, this.statusBar);
     }
 
+    // ensure a filter option is in force for search
+    populateFilterComboBox(true, cachedPDBExists);
     Thread discoverPDBStructuresThread = new Thread(new Runnable()
     {
       @Override
@@ -115,7 +123,8 @@ public class StructureChooser extends GStructureChooser implements
                 .getString("status.searching_for_pdb_structures"),
                 startTime);
         fetchStructuresMetaData();
-        populateFilterComboBox();
+        // revise filter options if no results were found
+        populateFilterComboBox(isStructuresDiscovered(), cachedPDBExists);
         updateProgressIndicator(null, startTime);
         mainFrame.setVisible(true);
         updateCurrentView();
@@ -159,6 +168,10 @@ public class StructureChooser extends GStructureChooser implements
       pdbRequest.setAllowEmptySeq(false);
       pdbRequest.setResponseSize(500);
       pdbRequest.setFieldToSearchBy("(");
+      FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
+              .getSelectedItem());
+      pdbRequest.setFieldToSortBy(selectedFilterOpt.getValue(),
+              !chk_invertFilter.isSelected());
       pdbRequest.setWantedFields(wantedFields);
       pdbRequest.setSearchTerm(buildQuery(seq) + ")");
       pdbRequest.setAssociatedSequence(seq);
@@ -187,9 +200,8 @@ public class StructureChooser extends GStructureChooser implements
             && !discoveredStructuresSet.isEmpty())
     {
       getResultTable().setModel(
-              FTSRestResponse.getTableModel(lastPdbRequest,
-              discoveredStructuresSet));
-      structuresDiscovered = true;
+              JvSummaryTable.getTableModel(lastPdbRequest,
+                      discoveredStructuresSet));
       noOfStructuresFound = discoveredStructuresSet.size();
       mainFrame.setTitle(MessageManager.formatMessage(
               "label.structure_chooser_no_of_structures",
@@ -206,9 +218,9 @@ public class StructureChooser extends GStructureChooser implements
         {
           errorMsg.append(error).append("\n");
         }
-        JOptionPane.showMessageDialog(this, errorMsg.toString(),
+        JvOptionPane.showMessageDialog(this, errorMsg.toString(),
                 MessageManager.getString("label.pdb_web-service_error"),
-                JOptionPane.ERROR_MESSAGE);
+                JvOptionPane.ERROR_MESSAGE);
       }
     }
   }
@@ -231,7 +243,7 @@ public class StructureChooser extends GStructureChooser implements
         }
       }
     }
-
+    cachedPDBExists = !entries.isEmpty();
     PDBEntryTableModel tableModelx = new PDBEntryTableModel(entries);
     tbl_local_pdb.setModel(tableModelx);
   }
@@ -249,20 +261,18 @@ public class StructureChooser extends GStructureChooser implements
     boolean isPDBRefsFound = false;
     boolean isUniProtRefsFound = false;
     StringBuilder queryBuilder = new StringBuilder();
-    HashSet<String> seqRefs = new LinkedHashSet<String>();
+    Set<String> seqRefs = new LinkedHashSet<String>();
 
-    if (seq.getAllPDBEntries() != null)
+    if (seq.getAllPDBEntries() != null
+            && queryBuilder.length() < MAX_QLENGTH)
     {
       for (PDBEntry entry : seq.getAllPDBEntries())
       {
         if (isValidSeqName(entry.getId()))
         {
-          queryBuilder.append("pdb_id")
-                  .append(":")
-.append(entry.getId().toLowerCase())
-                  .append(" OR ");
+          queryBuilder.append("pdb_id:")
+                  .append(entry.getId().toLowerCase()).append(" OR ");
           isPDBRefsFound = true;
-          // seqRefs.add(entry.getId());
         }
       }
     }
@@ -271,26 +281,22 @@ public class StructureChooser extends GStructureChooser implements
     {
       for (DBRefEntry dbRef : seq.getDBRefs())
       {
-        if (isValidSeqName(getDBRefId(dbRef)))
+        if (isValidSeqName(getDBRefId(dbRef))
+                && queryBuilder.length() < MAX_QLENGTH)
         {
           if (dbRef.getSource().equalsIgnoreCase(DBRefSource.UNIPROT))
           {
-            queryBuilder
-.append("uniprot_accession").append(":")
-                    .append(getDBRefId(dbRef))
-                    .append(" OR ");
-            queryBuilder
-.append("uniprot_id")
-                    .append(":")
+            queryBuilder.append("uniprot_accession:")
                     .append(getDBRefId(dbRef)).append(" OR ");
+            queryBuilder.append("uniprot_id:").append(getDBRefId(dbRef))
+                    .append(" OR ");
             isUniProtRefsFound = true;
           }
           else if (dbRef.getSource().equalsIgnoreCase(DBRefSource.PDB))
           {
 
-            queryBuilder.append("pdb_id")
-                    .append(":").append(getDBRefId(dbRef).toLowerCase())
-                    .append(" OR ");
+            queryBuilder.append("pdb_id:")
+                    .append(getDBRefId(dbRef).toLowerCase()).append(" OR ");
             isPDBRefsFound = true;
           }
           else
@@ -345,7 +351,6 @@ public class StructureChooser extends GStructureChooser implements
             .replaceAll("[^\\dA-Za-z|_]", "").replaceAll("\\s+", "+");
   }
 
-
   /**
    * Ensures sequence ref names are not less than 3 characters and does not
    * contain a database name
@@ -456,11 +461,11 @@ public class StructureChooser extends GStructureChooser implements
           reorderedStructuresSet.addAll(filteredResponse);
           reorderedStructuresSet.addAll(discoveredStructuresSet);
           getResultTable().setModel(
-                  FTSRestResponse.getTableModel(
-                  lastPdbRequest, reorderedStructuresSet));
+                  JvSummaryTable.getTableModel(lastPdbRequest,
+                          reorderedStructuresSet));
 
-          FTSRestResponse.configureTableColumn(getResultTable(),
-                  wantedFields);
+          JvSummaryTable.configureTableColumn(getResultTable(),
+                  wantedFields, tempUserPrefs);
           getResultTable().getColumn("Ref Sequence").setPreferredWidth(120);
           getResultTable().getColumn("Ref Sequence").setMinWidth(100);
           getResultTable().getColumn("Ref Sequence").setMaxWidth(200);
@@ -481,11 +486,11 @@ public class StructureChooser extends GStructureChooser implements
             {
               errorMsg.append(error).append("\n");
             }
-            JOptionPane.showMessageDialog(
+            JvOptionPane.showMessageDialog(
                     null,
                     errorMsg.toString(),
                     MessageManager.getString("label.pdb_web-service_error"),
-                    JOptionPane.ERROR_MESSAGE);
+                    JvOptionPane.ERROR_MESSAGE);
           }
         }
 
@@ -516,8 +521,8 @@ public class StructureChooser extends GStructureChooser implements
     int value = chooser.showOpenDialog(null);
     if (value == jalview.io.JalviewFileChooser.APPROVE_OPTION)
     {
-      selectedPdbFileName = chooser.getSelectedFile().getPath();
-      jalview.bin.Cache.setProperty("LAST_DIRECTORY", selectedPdbFileName);
+      selectedStructureFileName = chooser.getSelectedFile().getPath();
+      jalview.bin.Cache.setProperty("LAST_DIRECTORY", selectedStructureFileName);
       validateSelections();
     }
   }
@@ -526,34 +531,50 @@ public class StructureChooser extends GStructureChooser implements
    * Populates the filter combo-box options dynamically depending on discovered
    * structures
    */
-  @Override
-  protected void populateFilterComboBox()
+  protected void populateFilterComboBox(boolean haveData,
+          boolean cachedPDBExists)
   {
-    if (isStructuresDiscovered())
+    /*
+     * temporarily suspend the change listener behaviour
+     */
+    cmb_filterOption.removeItemListener(this);
+
+    cmb_filterOption.removeAllItems();
+    if (haveData)
     {
       cmb_filterOption.addItem(new FilterOption("Best Quality",
-              "overall_quality", VIEWS_FILTER));
+              "overall_quality", VIEWS_FILTER, false));
       cmb_filterOption.addItem(new FilterOption("Best Resolution",
-              "resolution", VIEWS_FILTER));
+              "resolution", VIEWS_FILTER, false));
       cmb_filterOption.addItem(new FilterOption("Most Protein Chain",
-              "number_of_protein_chains", VIEWS_FILTER));
+              "number_of_protein_chains", VIEWS_FILTER, false));
       cmb_filterOption.addItem(new FilterOption("Most Bound Molecules",
-              "number_of_bound_molecules", VIEWS_FILTER));
+              "number_of_bound_molecules", VIEWS_FILTER, false));
       cmb_filterOption.addItem(new FilterOption("Most Polymer Residues",
-              "number_of_polymer_residues", VIEWS_FILTER));
+              "number_of_polymer_residues", VIEWS_FILTER, true));
     }
     cmb_filterOption.addItem(new FilterOption("Enter PDB Id", "-",
-            VIEWS_ENTER_ID));
+            VIEWS_ENTER_ID, false));
     cmb_filterOption.addItem(new FilterOption("From File", "-",
-            VIEWS_FROM_FILE));
-    cmb_filterOption.addItem(new FilterOption("Cached PDB Entries", "-",
-            VIEWS_LOCAL_PDB));
+            VIEWS_FROM_FILE, false));
+
+    if (cachedPDBExists)
+    {
+      FilterOption cachedOption = new FilterOption("Cached PDB Entries",
+              "-", VIEWS_LOCAL_PDB, false);
+      cmb_filterOption.addItem(cachedOption);
+      cmb_filterOption.setSelectedItem(cachedOption);
+    }
+
+    cmb_filterOption.addItem(new FilterOption(
+            "Predict 3D Model with Phyre2", "-", VIEWS_PHYRE2_PREDICTION,
+            false));
+    cmb_filterOption.addItemListener(this);
   }
 
   /**
    * Updates the displayed view based on the selected filter option
    */
-  @Override
   protected void updateCurrentView()
   {
     FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
@@ -569,6 +590,12 @@ public class StructureChooser extends GStructureChooser implements
       chk_invertFilter.setVisible(true);
       filterResultSet(selectedFilterOpt.getValue());
     }
+    else if (selectedFilterOpt.getView() == VIEWS_PHYRE2_PREDICTION)
+    {
+      mainFrame.setTitle(MessageManager
+              .getString("label.phyre2_model_prediction"));
+      phyre2InputAssSeqPanel.loadCmbAssSeq();
+    }
     else if (selectedFilterOpt.getView() == VIEWS_ENTER_ID
             || selectedFilterOpt.getView() == VIEWS_FROM_FILE)
     {
@@ -613,6 +640,14 @@ public class StructureChooser extends GStructureChooser implements
     {
       validateAssociationFromFile();
     }
+    else if (currentView == VIEWS_PHYRE2_PREDICTION)
+    {
+      validateAssociationFromPhyre2();
+      if (getPhyreResultTable().getSelectedRows().length > 0)
+      {
+        btn_view.setEnabled(true);
+      }
+    }
   }
 
   /**
@@ -671,7 +706,7 @@ public class StructureChooser extends GStructureChooser implements
                     "-Select Associated Seq-")))
     {
       btn_pdbFromFile.setEnabled(true);
-      if (selectedPdbFileName != null && selectedPdbFileName.length() > 0)
+      if (selectedStructureFileName != null && selectedStructureFileName.length() > 0)
       {
         btn_view.setEnabled(true);
         lbl_fromFileStatus.setIcon(goodImage);
@@ -684,6 +719,25 @@ public class StructureChooser extends GStructureChooser implements
     }
   }
 
+  /**
+   * Validates inputs for Phyre2 3D Model prediction
+   */
+  public void validateAssociationFromPhyre2()
+  {
+    AssociateSeqOptions assSeqOpt = (AssociateSeqOptions) phyre2InputAssSeqPanel
+            .getCmb_assSeq().getSelectedItem();
+    if (selectedSequences.length == 1
+            || (assSeqOpt != null && !assSeqOpt.getName().equalsIgnoreCase(
+                    "-Select Associated Seq-")))
+    {
+      btn_runPhyre2Prediction.setEnabled(true);
+    }
+    else
+    {
+      btn_runPhyre2Prediction.setEnabled(false);
+    }
+  }
+
   @Override
   public void cmbAssSeqStateChanged()
   {
@@ -718,101 +772,104 @@ public class StructureChooser extends GStructureChooser implements
   public void ok_ActionPerformed()
   {
     final StructureSelectionManager ssm = ap.getStructureSelectionManager();
+    final int preferredHeight = pnl_filter.getHeight();
+    ssm.setMappingForPhyre2Model(false);
     new Thread(new Runnable()
     {
       @Override
       public void run()
       {
-    FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
-            .getSelectedItem());
-    String currentView = selectedFilterOpt.getView();
-    if (currentView == VIEWS_FILTER)
-    {
+        FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
+                .getSelectedItem());
+        String currentView = selectedFilterOpt.getView();
+        if (currentView == VIEWS_FILTER)
+        {
           int pdbIdColIndex = getResultTable().getColumn("PDB Id")
                   .getModelIndex();
           int refSeqColIndex = getResultTable().getColumn("Ref Sequence")
-              .getModelIndex();
+                  .getModelIndex();
           int[] selectedRows = getResultTable().getSelectedRows();
-      PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
-      int count = 0;
-      ArrayList<SequenceI> selectedSeqsToView = new ArrayList<SequenceI>();
-      for (int row : selectedRows)
-      {
+          PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
+          int count = 0;
+          List<SequenceI> selectedSeqsToView = new ArrayList<SequenceI>();
+          for (int row : selectedRows)
+          {
             String pdbIdStr = getResultTable().getValueAt(row,
-                    pdbIdColIndex)
-                .toString();
+                    pdbIdColIndex).toString();
             SequenceI selectedSeq = (SequenceI) getResultTable()
-                    .getValueAt(row,
-                refSeqColIndex);
-        selectedSeqsToView.add(selectedSeq);
+                    .getValueAt(row, refSeqColIndex);
+            selectedSeqsToView.add(selectedSeq);
             PDBEntry pdbEntry = selectedSeq.getPDBEntry(pdbIdStr);
             if (pdbEntry == null)
             {
               pdbEntry = getFindEntry(pdbIdStr,
                       selectedSeq.getAllPDBEntries());
             }
-        if (pdbEntry == null)
-        {
-          pdbEntry = new PDBEntry();
-          pdbEntry.setId(pdbIdStr);
-          pdbEntry.setType(PDBEntry.Type.PDB);
-          selectedSeq.getDatasetSequence().addPDBId(pdbEntry);
+            if (pdbEntry == null)
+            {
+              pdbEntry = new PDBEntry();
+              pdbEntry.setId(pdbIdStr);
+              pdbEntry.setType(PDBEntry.Type.PDB);
+              selectedSeq.getDatasetSequence().addPDBId(pdbEntry);
+            }
+            pdbEntriesToView[count++] = pdbEntry;
+          }
+          SequenceI[] selectedSeqs = selectedSeqsToView
+                  .toArray(new SequenceI[selectedSeqsToView.size()]);
+          launchStructureViewer(ssm, pdbEntriesToView, ap, selectedSeqs);
         }
-        pdbEntriesToView[count++] = pdbEntry;
-      }
-      SequenceI[] selectedSeqs = selectedSeqsToView
-              .toArray(new SequenceI[selectedSeqsToView.size()]);
-          launchStructureViewer(ssm, pdbEntriesToView, ap,
-                  selectedSeqs);
-    }
-    else if (currentView == VIEWS_LOCAL_PDB)
-    {
-      int[] selectedRows = tbl_local_pdb.getSelectedRows();
-      PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
-      int count = 0;
+        else if (currentView == VIEWS_LOCAL_PDB)
+        {
+          int[] selectedRows = tbl_local_pdb.getSelectedRows();
+          PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
+          int count = 0;
           int pdbIdColIndex = tbl_local_pdb.getColumn("PDB Id")
                   .getModelIndex();
-      int refSeqColIndex = tbl_local_pdb.getColumn("Ref Sequence")
-              .getModelIndex();
-      ArrayList<SequenceI> selectedSeqsToView = new ArrayList<SequenceI>();
-      for (int row : selectedRows)
-      {
-        PDBEntry pdbEntry = (PDBEntry) tbl_local_pdb.getValueAt(row,
-                pdbIdColIndex);
-        pdbEntriesToView[count++] = pdbEntry;
-        SequenceI selectedSeq = (SequenceI) tbl_local_pdb.getValueAt(row,
-                refSeqColIndex);
-        selectedSeqsToView.add(selectedSeq);
-      }
-      SequenceI[] selectedSeqs = selectedSeqsToView
-              .toArray(new SequenceI[selectedSeqsToView.size()]);
-          launchStructureViewer(ssm, pdbEntriesToView, ap,
-                  selectedSeqs);
-    }
-    else if (currentView == VIEWS_ENTER_ID)
-    {
-      SequenceI userSelectedSeq = ((AssociateSeqOptions) idInputAssSeqPanel
-              .getCmb_assSeq().getSelectedItem()).getSequence();
-      if (userSelectedSeq != null)
-      {
-        selectedSequence = userSelectedSeq;
-      }
+          int refSeqColIndex = tbl_local_pdb.getColumn("Ref Sequence")
+                  .getModelIndex();
+          List<SequenceI> selectedSeqsToView = new ArrayList<SequenceI>();
+          for (int row : selectedRows)
+          {
+            PDBEntry pdbEntry = (PDBEntry) tbl_local_pdb.getValueAt(row,
+                    pdbIdColIndex);
+            pdbEntriesToView[count++] = pdbEntry;
+            SequenceI selectedSeq = (SequenceI) tbl_local_pdb.getValueAt(
+                    row, refSeqColIndex);
+            selectedSeqsToView.add(selectedSeq);
+          }
+          SequenceI[] selectedSeqs = selectedSeqsToView
+                  .toArray(new SequenceI[selectedSeqsToView.size()]);
+          launchStructureViewer(ssm, pdbEntriesToView, ap, selectedSeqs);
+        }
+        else if (currentView == VIEWS_ENTER_ID)
+        {
+          SequenceI userSelectedSeq = ((AssociateSeqOptions) idInputAssSeqPanel
+                  .getCmb_assSeq().getSelectedItem()).getSequence();
+          if (userSelectedSeq != null)
+          {
+            selectedSequence = userSelectedSeq;
+          }
 
-      String pdbIdStr = txt_search.getText();
-      PDBEntry pdbEntry = selectedSequence.getPDBEntry(pdbIdStr);
-      if (pdbEntry == null)
-      {
-        pdbEntry = new PDBEntry();
+
+          String pdbIdStr = txt_search.getText();
+          PDBEntry pdbEntry = selectedSequence.getPDBEntry(pdbIdStr);
+          if (pdbEntry == null)
+          {
+            pdbEntry = new PDBEntry();
             if (pdbIdStr.split(":").length > 1)
             {
-              pdbEntry.setChainCode(pdbIdStr.split(":")[1]);
+              pdbEntry.setId(pdbIdStr.split(":")[0]);
+              pdbEntry.setChainCode(pdbIdStr.split(":")[1].toUpperCase());
             }
-        pdbEntry.setId(pdbIdStr);
-        pdbEntry.setType(PDBEntry.Type.PDB);
-        selectedSequence.getDatasetSequence().addPDBId(pdbEntry);
-      }
+            else
+            {
+              pdbEntry.setId(pdbIdStr);
+            }
+            pdbEntry.setType(PDBEntry.Type.PDB);
+            selectedSequence.getDatasetSequence().addPDBId(pdbEntry);
+          }
 
-      PDBEntry[] pdbEntriesToView = new PDBEntry[] { pdbEntry };
+          PDBEntry[] pdbEntriesToView = new PDBEntry[] { pdbEntry };
           launchStructureViewer(ssm, pdbEntriesToView, ap,
                   new SequenceI[] { selectedSequence });
     }
@@ -824,20 +881,99 @@ public class StructureChooser extends GStructureChooser implements
       {
         selectedSequence = userSelectedSeq;
       }
-      PDBEntry fileEntry = new AssociatePdbFileWithSeq()
-              .associatePdbWithSeq(selectedPdbFileName,
-                      jalview.io.AppletFormatAdapter.FILE,
+      PDBEntry fileEntry = new AssociateStructureFileWithSeq()
+              .associateStructureWithSeq(selectedStructureFileName,
+                          DataSourceType.FILE,
                       selectedSequence, true, Desktop.instance);
 
           launchStructureViewer(ssm,
                   new PDBEntry[] { fileEntry }, ap,
                   new SequenceI[] { selectedSequence });
-    }
-    mainFrame.dispose();
+        }
+        else if (currentView == VIEWS_PHYRE2_PREDICTION)
+        {
+          SequenceI userSelectedSeq = ((AssociateSeqOptions) phyre2InputAssSeqPanel
+                  .getCmb_assSeq().getSelectedItem()).getSequence();
+          if (userSelectedSeq != null)
+          {
+            selectedSequence = userSelectedSeq;
+          }
+          int templateColIndex = getPhyreResultTable()
+                  .getColumn("Template")
+                  .getModelIndex();
+          int[] selectedRows = getPhyreResultTable().getSelectedRows();
+          PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
+          int count = 0;
+          for (int row : selectedRows)
+          {
+            String templateId = getPhyreResultTable().getValueAt(row,
+                    templateColIndex).toString();
+            String structureFile = phyre2ResultDirectory + templateId
+                    + ".pdb";
+            pdbEntriesToView[count++] = new AssociateStructureFileWithSeq()
+                    .associateStructureWithSeq(structureFile,
+                            DataSourceType.FILE, selectedSequence, true,
+                            Desktop.instance);
+          }
+
+          final StructureSelectionManager ssm = ap
+                  .getStructureSelectionManager();
+          ssm.setMappingForPhyre2Model(true);
+          final long progressSessionId = System.currentTimeMillis();
+          ssm.setProgressSessionId(progressSessionId);
+
+          SequenceI[] sequences = new SequenceI[] { selectedSequence };
+
+          ssm.setProgressBar(MessageManager
+                  .getString("status.launching_3d_structure_viewer"));
+          final StructureViewer sViewer = new StructureViewer(ssm);
+          if (pdbEntriesToView.length > 1)
+          {
+            ArrayList<SequenceI[]> seqsMap = new ArrayList<SequenceI[]>();
+            for (SequenceI seq : sequences)
+            {
+              seqsMap.add(new SequenceI[] { seq });
+            }
+            SequenceI[][] collatedSeqs = seqsMap
+                    .toArray(new SequenceI[0][0]);
+            ssm.setProgressBar(null);
+            ssm.setProgressBar(MessageManager
+                    .getString("status.fetching_3d_structures_for_selected_entries"));
+            sViewer.viewStructures(pdbEntriesToView, collatedSeqs, ap);
+          }
+          else
+          {
+            ssm.setProgressBar(null);
+            ssm.setProgressBar(MessageManager.formatMessage(
+                    "status.fetching_3d_structures_for",
+                    pdbEntriesToView[0].getId()));
+            sViewer.viewStructures(pdbEntriesToView[0], sequences, ap);
+          }
+        }
+        closeAction(preferredHeight);
       }
     }).start();
   }
 
+  private String phyre2ResultDirectory;
+
+  @Override
+  public void predict3DModelWithPhyre2()
+  {
+    // TODO implement code for submitting sequence to Phyre2 service, and code
+    // for getting the result directory when the job completes, this is
+    // currently hard-wired to the directory of result for FER_CAPAN/1-144
+    phyre2ResultDirectory = "examples/testdata/phyre2results/56da5616b4559c93/";
+    String summaryhtml = phyre2ResultDirectory + "summary.html";
+    // TODO ditch HTML parsing once appropriated data file (i.e. JSON) for
+    // Phyre2 result summary is made available
+    List<Phyre2SummaryPojo> phyreResults = Phyre2Client
+            .parsePhyre2ResultSummaryTable(summaryhtml);
+    getPhyreResultTable()
+            .setModel(Phyre2Client.getTableModel(phyreResults));
+    Phyre2Client.configurePhyreResultTable(getPhyreResultTable());
+  }
+
   private PDBEntry getFindEntry(String id, Vector<PDBEntry> pdbEntries)
   {
     Objects.requireNonNull(id);
@@ -865,17 +1001,34 @@ public class StructureChooser extends GStructureChooser implements
 
     if (SiftsSettings.isMapWithSifts())
     {
-      // TODO: prompt user if there are lots of sequences without dbrefs.
-      // It can take a long time if we need to fetch all dbrefs for all
-      // sequences!
-      ArrayList<SequenceI> seqsWithoutSourceDBRef = new ArrayList<SequenceI>();
+      List<SequenceI> seqsWithoutSourceDBRef = new ArrayList<SequenceI>();
+      int p = 0;
+      // TODO: skip PDBEntry:Sequence pairs where PDBEntry doesn't look like a
+      // real PDB ID. For moment, we can also safely do this if there is already
+      // a known mapping between the PDBEntry and the sequence.
+
       for (SequenceI seq : sequences)
       {
-        if (seq.getSourceDBRef() == null && seq.getDBRefs() == null)
+        PDBEntry pdbe = pdbEntriesToView[p++];
+        if (pdbe != null && pdbe.getFile() != null)
         {
-            seqsWithoutSourceDBRef.add(seq);
-            continue;
+          StructureMapping[] smm = ssm.getMapping(pdbe.getFile());
+          if (smm != null && smm.length > 0)
+          {
+            for (StructureMapping sm : smm)
+            {
+              if (sm.getSequence() == seq)
+              {
+                continue;
+              }
+            }
           }
+        }
+        if (seq.getPrimaryDBRefs().size() == 0)
+        {
+          seqsWithoutSourceDBRef.add(seq);
+          continue;
+        }
       }
       if (!seqsWithoutSourceDBRef.isEmpty())
       {
@@ -946,12 +1099,8 @@ public class StructureChooser extends GStructureChooser implements
 
   public boolean isStructuresDiscovered()
   {
-    return structuresDiscovered;
-  }
-
-  public void setStructuresDiscovered(boolean structuresDiscovered)
-  {
-    this.structuresDiscovered = structuresDiscovered;
+    return discoveredStructuresSet != null
+            && !discoveredStructuresSet.isEmpty();
   }
 
   public Collection<FTSData> getDiscoveredStructuresSet()
@@ -980,8 +1129,7 @@ public class StructureChooser extends GStructureChooser implements
           pdbRequest.setResponseSize(1);
           pdbRequest.setFieldToSearchBy("(pdb_id:");
           pdbRequest.setWantedFields(wantedFields);
-          pdbRequest
-.setSearchTerm(searchTerm + ")");
+          pdbRequest.setSearchTerm(searchTerm + ")");
           pdbRequest.setAssociatedSequence(selectedSequence);
           pdbRestCleint = PDBFTSRestClient.getInstance();
           wantedFields.add(pdbRestCleint.getPrimaryKeyColumn());